Parameter	Cost (yen)	Reference
Peristeen cost	-	-
Device cost / year	280 945	Peristeen system: 12 095 yen / set Peristeen Accessory Unit: 1426 yen / unit Annual use: Peristeen system 2 sets (24 190 yen) +Peristeen Accessory Unit 180 units (256 755 yen) *As a device cost of Peristeen, the average of market prices in UK, Germany and France was used.
Procedure fee / year	216 000	The medical fee C106 home self-catheterization care instruction fee: 18 000 yen Postulate that it is calculated once a month
SBC cost / month	4151	Medical specialist survey
Stoma construction fee	-	-
laparoscopic colostomy	139 200	The medical fee K726-2 laparoscopic colostomy: 139 200 yen K726 Colostomy: 79 800 yen *The weighted average value of the rate of laparoscopic colostomy and the rate of non-laparoscopic colostomy was used in the model. (113 955 yen)
non-laparoscopic colostomy	79 800
Hospitalization cost at stoma construction	-	Medical specialist survey The weighted average value of the rate of laparoscopic colostomy and the rate of non-laparoscopic colostomy was used in the model. (239 020 yen)
laparoscopic colostomy	236 311
non-laparoscopic colostomy	242 686
Stoma management cost / month	-	Medical specialist survey
1st year	4131
From 2nd year	1621
Hospitalization cost for UTIs / month	163 113	Medical specialist survey The weighted average value of hospitalization cost for UTIs UTI, medical care expenditure of UTIs outpatients and Medical care expenditure of UTIs outpatients was used in the model. (26 507 yen)
Medical care expenditure of UTIs outpatients / month	14 126
Medical care expenditure of UTIs outpatients(no treatment) / month	10 293
Visiting nursing cost / day	5800	The medical fee C005 Visiting nursing / instruction fee (per day) (for 3 weeks): 5800 yen
	5200	The medical fee Long-hours visiting nursing / instruction premium (only once a week): 5200 yen
Hospitalization cost	-	-
Due to decubitus	1 512 630	MDV database
Due to other diseases	630 960